From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D10D3C43603 for ; Thu, 19 Dec 2019 13:35:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A393D206D8 for ; Thu, 19 Dec 2019 13:35:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="VMU3axBi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726776AbfLSNf6 (ORCPT ); Thu, 19 Dec 2019 08:35:58 -0500 Received: from merlin.infradead.org ([205.233.59.134]:46990 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726744AbfLSNf6 (ORCPT ); Thu, 19 Dec 2019 08:35:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=YSWZcOq3c4tDpa7LmbcYDgqZaDKNh9WKgBSxITrGWH0=; b=VMU3axBiD4FRvBTUAvat9++sh QduzMQrNMhpyhtVc5RAWKPuxaPWfFYkdKhazG/Ft7Rb2DcgDwcNM6GB1Y+LXthA2qM1qd2DA1S3Go pBDLF+l0FeQ8QKOt6JpebPmTPqCHKQVdfGynuJOJRihcWND6FmluJqXwRRlAxAJXBJtDpV7B3vIIQ HyjLGsUezYfLMMJT6ecEqBRXmLtrO3r6tw9kZGnggFfNCAPXD0vvnCbm/e2tWk2lwkSdLuHxAXKNC MzM0SeXj8f6KIEsepVLCK4CRpfDa490tRRci4kujDYCTdi9wAoiKDa4FtyDHyFb1Au2y4UcUyqPt5 itF3fF1fw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1ihvxC-0000aR-0J; Thu, 19 Dec 2019 13:34:58 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id B60D3304D00; Thu, 19 Dec 2019 14:33:28 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 4501F2B3E168F; Thu, 19 Dec 2019 14:34:52 +0100 (CET) Date: Thu, 19 Dec 2019 14:34:52 +0100 From: Peter Zijlstra To: Thomas Garnier Cc: kernel-hardening@lists.openwall.com, kristen@linux.intel.com, keescook@chromium.org, Herbert Xu , "David S. Miller" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , x86@kernel.org, Andy Lutomirski , Juergen Gross , Thomas Hellstrom , "VMware, Inc." , "Rafael J. Wysocki" , Len Brown , Pavel Machek , Rasmus Villemoes , Will Deacon , Masami Hiramatsu , Jiri Slaby , Boris Ostrovsky , Greg Kroah-Hartman , Alexios Zavras , Allison Randal , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-pm@vger.kernel.org Subject: Re: [PATCH v10 00/11] x86: PIE support to extend KASLR randomization Message-ID: <20191219133452.GM2827@hirez.programming.kicks-ass.net> References: <20191205000957.112719-1-thgarnie@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191205000957.112719-1-thgarnie@chromium.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org On Wed, Dec 04, 2019 at 04:09:37PM -0800, Thomas Garnier wrote: > Minor changes based on feedback and rebase from v9. > > Splitting the previous serie in two. This part contains assembly code > changes required for PIE but without any direct dependencies with the > rest of the patchset. ISTR suggestion you add an objtool pass that verifies there are no absolute text references left. Otherwise we'll forever be chasing that last one..